Providing investors with access to the Japanese stock market in a single trade, the iShares MSCI Japan ETF (NYSEARCA:EWJ | EWJ Price Prediction) was one of the best-performing developed-market funds through early 2026, riding political optimism traders dubbed the “Takaichi trade.” That run has hit a wall. EWJ is down 9% over the past month, even as it holds a 5% year-to-date gain and a 20% one-year return. Unsurprisingly, the ongoing conflict in the Middle East has sent oil prices surging, and Japan’s economy sits directly in the line of fire.
The Takaichi trade was built on Prime Minister Sanae Takaichi’s landslide victory and her pro-growth agenda. The Nikkei 225 crossed a new milestone in February as investors priced in higher spending, tax relief, and corporate reform, all while EWJ pulled in $1 billion in a single week in late February 2026 as global investors rotated out of U.S. equities. Then the U.S.-Israeli war on Iran escalated, and the calculus changed fast.
As it stands today, Japan relies on the Middle East for around 95% of its oil, with the bulk of that oil traveling through the Strait of Hormuz. Oil prices surged on fears of prolonged shipping disruptions. An upcoming BOJ policy meeting will be the first real signal of how seriously Tokyo views the threat. Takaichi acknowledged the government was considering emergency measures to prevent gasoline prices from reaching unsustainable levels.

EWJ’s Sentiment Turns Cautious as Oil Risk Mounts
Social discussion of EWJ has been concentrated entirely in r/stockmarket, with activity low and sentiment oscillating between neutral and bearish. Scores have ranged from 36 to 42 over the past several days, with no bullish readings recorded. The composite sentiment index sits at 50.
The bearish case rests on three structural vulnerabilities:
- Japan imports a significant share of its oil from the Middle East, making it one of the most energy-exposed developed economies when regional conflict disrupts supply.
- Brent crude has climbed from $62.54 in December 2025 to $70.89 in February 2026, and analysts warn that sustained elevated oil prices would erode real wages and trigger stagflation risks.
- The Takaichi trade was built on a political narrative, not economic fundamentals. Japan’s economy contracted quarter-on-quarter in late 2025, and bankruptcy cases rose 11.3% year-over-year in February 2026.
What the $100 Oil Scenario Actually Means for Japan
Despite Brent crude climbing above $100 to $102.50 as of March 17, history suggests these geopolitical spikes can be transitory, much like the surge to $122.71 during the 2022 energy crisis. For the Japanese market, this volatility is largely noise; the structural story of corporate reform, dividend growth, and the unwinding of cross-shareholdings remains intact regardless of near-term oil fluctuations.
The BOJ’s upcoming policy meeting will be the first real signal: if Ueda holds rates steady specifically because of oil-driven economic risk, that would signal how seriously Tokyo views the threat.